Report for 22644

Name

TJUH - Thomas Jefferson University Hospitals, Inc., US

AS Adjacency Report

In the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS2.0) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships.

22644 TJUH - Thomas Jefferson University Hospitals, Inc., US

  Adjacency:     3  Upstream:     3  Downstream:     0
  Upstream Adjacent AS list
    AS399855        KEYSTONEREN - Keystone REN, LLC, US
    AS46887         CROWNCASTLE-AS46887 - Crown Castle Fiber LLC, US
    AS174           COGENT-174 - Cogent Communications, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
3994  AS22644        ORIGIN  Originate:      61696 /16.09  Transit:          0 /0.00  TJUH - Thomas Jefferson University Hospitals, Inc., US

Aggregation Suggestions

        Filter: Aggregates, Specifics

This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.

 Rank AS            AS Name                                      Current  Wthdw  Aggte  Annce Redctn       %
36657 AS22644       TJUH - Thomas Jefferson University Hospitals,      5      0      0      5      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  147.140.0.0/18       4777 2516 174 22644    
  147.140.80.0/20      4777 2516 174 22644    
  147.140.96.0/19      4777 2516 174 22644    
  147.140.128.0/17     4777 2516 174 22644    
  147.140.255.0/24     4777 2497 1299 46887 22644   

Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.

AS22644   5 More Specifics   5 Total Advertisements   TJUH - Thomas Jefferson University Hospitals, Inc., US
    147.140.0.0/18                147.140.0.0/16
    147.140.80.0/20               147.140.0.0/16
    147.140.96.0/19               147.140.0.0/16
    147.140.128.0/17              147.140.0.0/16
    147.140.255.0/24              147.140.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS22644 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS22644\n             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #
             
             
             ASNumber:       22644
             ASName:         TJUH
             ASHandle:       AS22644
             RegDate:        2001-10-29
             Updated:        2022-03-29
             Ref:            https://rdap.arin.net/registry/autnum/22644
             
             
             OrgName:        Thomas Jefferson University Hospitals, Inc.
             OrgId:          TJUH-1
             Address:        833 Chestnut Street, Suite 600
             Address:        Information Systems
             City:           Philadelphia
             StateProv:      PA
             PostalCode:     19107
             Country:        US
             RegDate:        2001-10-29
             Updated:        2024-03-07
             Ref:            https://rdap.arin.net/registry/entity/TJUH-1
             
             
             OrgAbuseHandle: ABUSE8441-ARIN
             OrgAbuseName:   Abuse
             OrgAbusePhone:  +1-215-955-7975 
             OrgAbuseEmail:  abuse@jefferson.edu
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE8441-ARIN
             
             OrgDNSHandle: HOSTM2171-ARIN
             OrgDNSName:   Hostmaster
             OrgDNSPhone:  +1-215-955-7975 
             OrgDNSEmail:  hostmaster@jefferson.edu
             OrgDNSRef:    https://rdap.arin.net/registry/entity/HOSTM2171-ARIN
             
             OrgTechHandle: DWW11-ARIN
             OrgTechName:   Weber, David William
             OrgTechPhone:  +1-215-955-3603 
             OrgTechEmail:  david.weber@jefferson.edu
             OrgTechRef:    https://rdap.arin.net/registry/entity/DWW11-ARIN
             
             OrgTechHandle: WOOTO8-ARIN
             OrgTechName:   Wooton, Steven 
             OrgTechPhone:  +1-856-816-5241 
             OrgTechEmail:  steven.wooton@jefferson.edu
             OrgTechRef:    https://rdap.arin.net/registry/entity/WOOTO8-ARIN
             
             OrgRoutingHandle: NOC33462-ARIN
             OrgRoutingName:   NOC
             OrgRoutingPhone:  +1-215-955-7975 
             OrgRoutingEmail:  noc@jefferson.edu
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/NOC33462-ARIN
             
             OrgNOCHandle: NOC33462-ARIN
             OrgNOCName:   NOC
             OrgNOCPhone:  +1-215-955-7975 
             OrgNOCEmail:  noc@jefferson.edu
             OrgNOCRef:    https://rdap.arin.net/registry/entity/NOC33462-ARIN
             
             OrgTechHandle: RUIZT9-ARIN
             OrgTechName:   Ruiz, Thomas 
             OrgTechPhone:  +1-267-226-1814 
             OrgTechEmail:  thomas.ruiz@jefferson.edu
             OrgTechRef:    https://rdap.arin.net/registry/entity/RUIZT9-ARIN
             
             RNOCHandle: ERNST4-ARIN
             RNOCName:   Ernst, Matthew 
             RNOCPhone:  +1-215-503-1199 
             RNOCEmail:  Matthew.Enst@jefferson.edu
             RNOCRef:    https://rdap.arin.net/registry/entity/ERNST4-ARIN
             
             RTechHandle: ERNST4-ARIN
             RTechName:   Ernst, Matthew 
             RTechPhone:  +1-215-503-1199 
             RTechEmail:  Matthew.Enst@jefferson.edu
             RTechRef:    https://rdap.arin.net/registry/entity/ERNST4-ARIN
             
             RAbuseHandle: ERNST4-ARIN
             RAbuseName:   Ernst, Matthew 
             RAbusePhone:  +1-215-503-1199 
             RAbuseEmail:  Matthew.Enst@jefferson.edu
             RAbuseRef:    https://rdap.arin.net/registry/entity/ERNST4-ARIN
             
             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #